From Wikipedia, the free encyclopedia
Klinefelter can refer to:
- Harry (Fitch) Klinefelter(, Jr.) (1912 - 1990), an American endocrinologist
- Klinefelter's syndrome (aka 47, XXY, or XXY syndrome), named after Harry
- Kleinfeltersville, Pennsylvania, an unincorporated community in Heidelberg Township, Lebanon County, Pennsylvania, United States.
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